Public meeting

He added that generators were running all night and said he had recently had to ask for tower lights shining towards his house to be turned.

A month ago, about 100 people attended a public meeting in Cwmgors over concerns the road would not be able to cope with the large lorries.

Steve Phillips, Neath Port Talbot (NPT) council's chief executive, said the local authority consulted with people on the problems of using the A474 for a new wind farm, and a Welsh Government planning inspector identified the road as the appropriate route.

He added: "I'm not trying to claim the A474 is ideal for this sort of traffic...it is indeed narrow, but at the end of the day that was the conclusion that the planning inspector reached and that is the basis upon which we're acting."

Lynette Purcell, Pontardawe Town councillor and NPT councillor, said local people "did not become aware of this until after it had been signed on the dotted line and was going to happen".

The wind farm is expected to be able to generate enough electricity to power about 23,800 homes.

A spokesman for Electricity Supply Board International, owned by the Irish Government, said the company had consulted with local people and held public information days about lorry movements and abnormal loads in the future.